RE: [cobalt-users] Email size limit

["David J. Duffner - NWCWEB.com" <cobalt@xxxxxxxxxx>]

>-----Original Message-----
>From: cobalt-users-admin@xxxxxxxxxxxxxxx 
>[mailto:cobalt-users-admin@xxxxxxxxxxxxxxx] On Behalf Of Pablo Jejcic
>Sent: Thursday, March 18, 2004 9:54 AM
>To: cobalt-users@xxxxxxxxxxxxxxx
>Subject: [cobalt-users] Email size limit
>
>
>Hello....
>	One of my users is trying to send emails quite big 
>(10-15 Mb) trough the email, and he allways receive a message
>than the server reject them because it is more than 5MB...
>
>	I looked into the sendmail.cf, and I couldn't find anything that
>says a limit o 5MB or anything...

	Dan's point to the Control Panel is the best place
to adjust the setting, but there's a basic principal to 
be considered as well...

	Most e-mail accounts are set to receive no more than
5MB at best, many popular commercial accounts are set to 
an average of 2MB.  Depends on where your RaQ is hosted or
located as to the speed of transferring these e-mails, even
if both parties have a broadband connection.
	
	Our experience with the RaQ, even though we've moved
on to an Ensim box, was that pushing that limit beyond 5MB
resulted in poor performance and POP servers timing out 
before the mail could be either sent up or delivered.  And
it leaves a door open for anyone who figures out your high
limit to attempt e-mail worms that jam your box(es) with 
large attachment e-mails that can also reduce performance.

	Personally, we've kept the 5MB max limit on either OS
and suggest the clients send a normal e-mail with the attachments
of over 3-4 MB placed in an FTP section for the receiver to
grab as they see fit.  Transfer speed is better on files of
that size and if this is just one user they can use their
personal webspace to store them.

	One last note, you have to over-compensate by a small
bit over the max size of the e-mail to allow for the headers
and such to pass as well.  We had someone trying to send a
5MB attachment in an e-mail and it was rejected as the main
e-mail portion kicked it over the limit by a mere 20K.  

	Just some thoughts to contemplate...

      David J. Duffner
      VP Operations
      NWC Corporation
      NWCWEB.com
      
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